ES476696A1 - Three-block copolymers and method for producing them - Google Patents

Three-block copolymers and method for producing them

Info

Publication number
ES476696A1
ES476696A1 ES476696A ES476696A ES476696A1 ES 476696 A1 ES476696 A1 ES 476696A1 ES 476696 A ES476696 A ES 476696A ES 476696 A ES476696 A ES 476696A ES 476696 A1 ES476696 A1 ES 476696A1
Authority
ES
Spain
Prior art keywords
block
block copolymers
polymerizing
catalyst
disclosed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES476696A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anic SpA
Original Assignee
Anic SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anic SpA filed Critical Anic SpA
Publication of ES476696A1 publication Critical patent/ES476696A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F295/00—Macromolecular compounds obtained by polymerisation using successively different catalyst types without deactivating the intermediate polymer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Graft Or Block Polymers (AREA)
  • Polymerization Catalysts (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

Three-block copolymers of the ABA and ABC type are disclosed in which A and C are plastomeric monomers and B is an elastomeric polymer are disclosed, which are prepared by first polymerizing the block A in such a way to keep alive the active centers in the chain ends for a time sufficient to permit the addition of the second monomer B, whereafter, with the aid of a special catalytic system, the growth of the third block C, can be carried out. A and C are mutually interchangeable. The catalyst for polymerizing the block A is a Lewis' acid aided by isobutene and the catalyst for introducing and copolymerizing C (or A) is a chloride of aluminium alkyl.
ES476696A 1977-12-20 1978-12-19 Three-block copolymers and method for producing them Expired ES476696A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT30946/77A IT1089976B (en) 1977-12-20 1977-12-20 THREE-BLOCK COMPOLYMERS AND PROCEDURE FOR THEIR PRODUCTION

Publications (1)

Publication Number Publication Date
ES476696A1 true ES476696A1 (en) 1979-10-16

Family

ID=11232821

Family Applications (1)

Application Number Title Priority Date Filing Date
ES476696A Expired ES476696A1 (en) 1977-12-20 1978-12-19 Three-block copolymers and method for producing them

Country Status (15)

Country Link
US (1) US4262095A (en)
JP (1) JPS5490391A (en)
BE (1) BE872905A (en)
CA (1) CA1118931A (en)
CS (1) CS213367B2 (en)
DD (1) DD139861A5 (en)
DE (1) DE2855133C2 (en)
DK (1) DK568378A (en)
ES (1) ES476696A1 (en)
FI (1) FI783893A (en)
FR (1) FR2412575A1 (en)
IT (1) IT1089976B (en)
NL (1) NL7812215A (en)
SE (1) SE7813082L (en)
ZA (1) ZA786985B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1149951B (en) * 1980-04-10 1986-12-10 Anic Spa THREE-BLOCK THERMOELASTOMERIC COPOLYMETER PREPARATION PROCEDURE
IT1152433B (en) * 1982-07-14 1986-12-31 Montedison Spa BLOCK COPOLYMERS OF OLEFINS WITH VINYLAROMATIC MONOMERS
WO1992014790A1 (en) * 1991-02-19 1992-09-03 Nippon Zeon Co., Ltd. Thermoplastic resin composition
US5276094A (en) * 1992-11-12 1994-01-04 Polysar Rubber Corp. Compositions of butyl elastomers and block copolymers of polyisobutylene

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE627652A (en) * 1962-01-29
US3649579A (en) * 1969-01-27 1972-03-14 Minnesota Mining & Mfg Block copolymer compositions
JPS4825419B1 (en) * 1969-11-20 1973-07-28
FR2120302A5 (en) * 1970-12-29 1972-08-18 Aquitaine Total Organico
NL7113482A (en) * 1971-10-01 1973-04-03
US3992483A (en) * 1975-09-25 1976-11-16 Phillips Petroleum Company Promoters in the polymerization of monovinyl-aromatic compounds with primary lithium initiators

Also Published As

Publication number Publication date
JPS5490391A (en) 1979-07-18
US4262095A (en) 1981-04-14
NL7812215A (en) 1979-06-22
FR2412575B1 (en) 1982-02-19
DE2855133C2 (en) 1981-12-17
CS213367B2 (en) 1982-04-09
BE872905A (en) 1979-06-20
CA1118931A (en) 1982-02-23
ZA786985B (en) 1979-11-28
FR2412575A1 (en) 1979-07-20
DD139861A5 (en) 1980-01-23
DK568378A (en) 1979-06-21
IT1089976B (en) 1985-06-18
FI783893A (en) 1979-06-21
DE2855133A1 (en) 1979-06-21
SE7813082L (en) 1979-06-21

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